Si diamond MEAM_LAMMPS_Lee_2007_Si__MO_774917820956_001 5.427092507481575 Optimization terminated successfully. Current function value: -37.040000 Iterations: 73 Function evaluations: 193 C11 = 163.487706 +/- 0.007336 GPa C12 = 67.042266 +/- 0.005187 GPa C44 = 79.247919 +/- 0.001834 GPa B = 99.190746 +/- 0.004235 GPa